As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE AIRCRAFT WOULD NOT TURN, APPLIED A MODERATE AMOUNT OF PRESSURE TO FREE AILERONS. AIRCRAFT CONTINUED TO NRT AND LANDED WITHOUT INCIDENT. REMOVED ICE FROM THE CENTRAL CONTROL ACTUATOR LOAD LIMITER. REPLACED THE NR 2 PACK WATER SEPARATOR COALESCER AND PLENUM CHAMBER, OPERATIONAL CHECK GOOD.